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Re: Women's anemia status [message #586 is a reply to message #516] |
Wed, 26 June 2013 10:25 |
estammer
Messages: 9 Registered: March 2013
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Member |
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Hi, thanks for your reply. I have checked out the Guide to DHS Statistics and unfortunately, I still have questions.
the Guide says this: "Pregnancy causes an increase in blood fluid diluting somewhat the concentration of hemoglobin. Therefore the cutoff for mild anemia is lowered for pregnant women. No adjustment is made for the cutoff values for either moderate or severe anemia. Because the availability of oxygen is less at higher altitudes (lower partial pressures) and because smoking interferes with the blood's capacity to transfer oxygen, adjustments need to be made for both altitude and smoking."
From this, I understand that there is an adjustment for mild anemia in pregnant women, but I am not sure if this adjustment is made by gestational age, trimester or if there is one adjustment made for pregnant women as a whole.
For example, if a woman was 20 weeks pregnant, according to the CDC criteria, she would NOT be considered mildly anemic because the threshold is 10.5. However, when looking at the thresholds used in DHS report tables (<11.0 for pregnant women), it appears as though she WOULD be considered mildly anemic.
I have attached the CDC table I am referring to that is quoted in the "DHS guide to statistics". The DHS report I am referring to is Bangladesh 2011.
Thanks again for your help with this!
Emily
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Re: Women's anemia status [message #602 is a reply to message #587] |
Fri, 05 July 2013 10:53 |
Trevor-DHS
Messages: 805 Registered: January 2013
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DHS does not make any adjustment for trimester of pregnancy, but rather uses the more conservative adjustment of 1 g/dl for all pregnant women. This is partly due to the historical series that DHS reports and partly due to uncertainty of the accuracy of the trimester of pregnancy.
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